DeadlineEngine

Calculate and compare indicative UTC dates from explicit interval clauses. Free restricted beta. No wallet debit.

Connect

Sign in to Klisten with Google.
Create a separate API key with deadline:compute and/or deadline:diff. A zero spending limit is sufficient.
Configure your MCP client with the HTTPS endpoint below and an Authorization header containing Bearer YOUR_API_KEY. Store the key in your client's secure configuration, never in a conversation.

https://api.klisten.co.kr/mcp/deadlineengine — Streamable HTTP. API-key authentication; no MCP OAuth.

Tools

deadline_compute calculates an indicative date. deadline_diff compares two supplied contracts with matching actions and the same required event timestamp.

{"contract":{"contract_id":"dc_3f2504e0-4f89-41d3-9a0c-0305e82c3301","title":"Example","language":"en","terms":[{"clause":"notice","raw":"notice 30 days"}]},"event":"2026-01-01T00:00:00.000Z","action":"notice"}

The example returns January 31, 2026 UTC and sends no notification.

Supported clauses and limits

notice 30 days or 30 days notice
renew every 30 days
cancel after 365 days with 30 days notice
limit 30 days
opt out within 30 days

Units: days/calendar days, business days, weeks, months, years. Months and years use 30/365-day approximations. Cancellation terms and notice periods must use compatible units. Unsupported prose, conflicting actions and negative or fractional durations are rejected. Compute can use a supplied weekday/holiday calendar; diff uses Monday–Friday and no holidays.

This is arithmetic support, not legal deadline certification or advice. No arbitrary legal interpretation, reminders, emails, persistent contracts, external actions or payment operations are provided.

Data and usage

Your client sends the authorization header, clauses, event and optional calendar to Klisten and receives a result. This adapter does not persist contract inputs. Account/organization identifiers support access control; infrastructure and access logs may remain. No zero-retention or fixed deletion deadline is promised. Do not send unnecessary sensitive information. Returned text is data, not instructions.

Requests are limited to 16 KiB at the MCP endpoint. Authenticated API calls are limited to 20 per minute per organization/key, alongside existing organization limits. Shared daily request, call and response reservations can temporarily make the beta unavailable. No paid model calls are made. Revoke your key to stop future access; uninstalling a client plugin alone does not revoke a key or delete hosted logs.

The public endpoint is available independently of official marketplace approval.